可逆式水泵水轮机多目标优化设计及流动研究  

Multi-objective Optimization Design and Internal Flow Research of Pump-turbine

作　　者：樊玉林 祝宝山[2] 胡赞熬 张飞 FAN Yu-lin;ZHU Bao-shan;HU Zan-ao;ZHANG Fei(Technology Center of State Grid Xinyuan Company Ltd.,Beijing 100161,China;State Key Laboratory of Hydroscience and Engineering,Department of Energy and Power Engineering,Tsinghua University,Beijing 100084,China;School of Energy and Power Engineering,Xihua University,Chengdu 610039,China)

机构地区：[1]国网新源控股有限公司技术中心,北京100161 [2]清华大学能源与动力工程系水沙科学与水利水电工程国家重点实验室,北京100084 [3]西华大学能源与动力工程学院,四川成都610039

出　　处：《水电能源科学》2019年第10期108-112,共5页Water Resources and Power

基　　金：国家自然科学基金项目(51679122);国家电网公司科技项目(52573015000J)

摘　　要：传统水泵水轮机设计方法设计周期长、成本高,且十分依赖于设计经验。为此,介绍了一套适用于水泵水轮机设计的多目标优化设计系统,利用该优化设计系统,以叶片载荷和叶片倾角为优化变量,以水泵额定工况点的机组效率、水泵空化性能、水轮机额定工况点的机组效率及水轮机最优工况机组效率为优化目标,对某抽水蓄能电站的水泵水轮机转轮进行了优化设计,得到了优化转轮。结果表明,该系统非常适用于转轮多目标开发设计,相比于初始转轮,优化后转轮4个优化目标均得到不同程度的提升;在水轮机额定工况下转轮流线分布明显改善,有效提高了转轮叶片最低压力值。The traditional design method of pump-turbine runner has some shortcomings,such as time consuming,high cost and depending on the experience.In this paper,a multi-objective optimization design system for pump-turbine runner is introduced.The optimized pump-turbine runner is designed with the system by selecting the blade loading and dip angle as variables and the efficiencies under the rated condition of pump mode and turbine mode,the efficiency under the optimal condition of turbine mode and the cavitation performance as optimization targets.The results show that all the optimization targets are improved compared to the initial runner.The streamline distribution of runner at the rated condition of turbine mode is obviously improved,and the low pressure area of the runner is increased effectively.

关 键 词：水泵水轮机 多目标优化设计 数值模拟 反问题设计 

分 类 号：TK734[交通运输工程—轮机工程]